@keyframes moveInLeft {
  0% {
    opacity: 0;
    transform: translateX(-10rem); }
  80% {
    transform: translateX(1rem); }
  100% {
    opacity: 1;
    transform: translate(0); } }

@keyframes moveInRight {
  0% {
    opacity: 0;
    transform: translateX(10rem); }
  80% {
    transform: translateX(-1rem); }
  100% {
    opacity: 1;
    transform: translate(0); } }

@keyframes moveInBottom {
  0% {
    opacity: 0;
    transform: translateY(3rem); }
  100% {
    opacity: 1;
    transform: translate(0); } }







*,
*::after,
*::before {
  margin: 0;
  padding: 0;
  box-sizing: inherit; 
}


html {
  font-size: 62.5%; 
}
body {
  box-sizing: border-box; }

body {
  font-family: 'Roboto Mono', monospace;
  font-size: 16px;
  padding: 3rem; 
  font-weight: 400;
  /*font-size: 16px;*/
  line-height: 1.7;
  color: #777;
  }




.header {
  height: 92vh;
  background-image: url(../Immagin/strageBologna.jpg);
  background-size: cover;
  background-position: top;
 
  backface-visibility: hidden; 
  height: 95vh;
  background-image: linear-gradient(to right bottom, rgba(126, 213, 111, 0.185), rgba(180, 40, 40, 0.26)), url(../Immagin/strageBologna.jpg);
 
  position: relative;
  -webkit-clip-path: polygon(0 0, 100% 0, 100% 75vh, 0 100%);
  clip-path: polygon(0 0, 100% 0, 100% 75vh, 0 100%); 
}

.header-textbox {
    position: absolute;
    top: 40%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center; 
}


.titolo-iniziale {
  text-transform: capitalize; 
  color: #ffff;
  text-transform: uppercase;
  backface-visibility: hidden;
 
 }
   

.titolo-iniziale-sopra {
  display: block;
    font-size: 6rem;
    font-weight: 400;
    letter-spacing: 0.5rem;
    animation-name: moveInLeft;
    animation-duration: 1s;
    animation-timing-function: ease-out;
  /*animation-delay: 3s;
animation-iteration-count:3;

*/ }

.titolo-iniziale-sotto {
  display: block;

  font-weight: 700;


    font-size: 2rem;
    font-weight: 700;
    letter-spacing: 1rem;
    animation: moveInRight 1s ease-out; }

.btn, .btn:link, .btn:visited {
  text-transform: uppercase;
  text-decoration: none;
  padding: 1.5rem 4rem;
  display: inline-block;
  border-radius: 10rem;
  transition: all .2s;
  position: fixed;
  top:60%;
  left:40%;
  font-size: 1.6rem;
  border: none;
  cursor: pointer;
 }

.btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 1rem 2rem rgba(0, 0, 0, 0.2); }
  .btn:hover::after {
    transform: scaleX(1.4) scaleY(1.6);
    opacity: 0; 
}

.btn:active, .btn:focus {
  outline: none;
  transform: translateY(-1px);
  box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.2);
 }

.btn--white {
  background-color: #fff;
  color: #777; }

.btn--white::after {
    background-color: #fff;
 }



.btn::after {
  content: "";
  display: inline-block;
  height: 100%;
  width: 100%;
  border-radius: 18rem;
  position: absolute;
  top: 0;
  left: 0;
  z-index: -1;
  transition: all .4s;
}




.navigation__checkbox {
  display: none; }

.navigation__button {
  background-color: #fff;
  height: 7rem;
  width: 7rem;
  position: fixed;
  top: 6rem;
  right: 6rem;
  border-radius: 50%;
  z-index: 2000;
  box-shadow: 0 1rem 3rem rgba(0, 0, 0, 0.1);
  text-align: center;
  cursor: pointer; }

.navigation__background {
  height: 6rem;
  width: 6rem;
  border-radius: 50%;
  position: fixed;
  top: 6.5rem;
  right: 6.5rem;
  background-image: radial-gradient(closest-side, #3f87a6, #ebf8e1, #f69d3c);
  z-index: 1000;
  transition: transform 0.8s cubic-bezier(0.86, 0, 0.07, 1); }

.navigation__nav {
  height: 100vh;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1500;
  opacity: 0;
  width: 0;
  transition: all 0s cubic-bezier(0.68, -0.55, 0.265, 1.55); }

.navigation__list {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  list-style: none;
  text-align: center;
  width: 100%; 
}

.navigation__item {
  margin: 1rem; }

.navigation__link:link, .navigation__link:visited {
  display: inline-block;
  font-size: 3rem;
  font-weight: 300;
  padding: 1rem 2rem;
  color: black;
  text-decoration: none;
  text-transform: uppercase;
  background-image: linear-gradient(120deg, transparent 0%, transparent 0%,  #fff 50%);
  background-size: 220%;
  transition: all 0s; 
}
  .navigation__link:link span, .navigation__link:visited span {
    margin-right: 1.5rem;
    display: inline-block; }

.navigation__link:hover, .navigation__link:active {
  background-position: 100%;
  color: #55c57a1f;
  transform: translateX(1rem); }

.navigation__checkbox:checked ~ .navigation__background {
  transform: scale(80); }

.navigation__checkbox:checked ~ .navigation__nav {
  opacity: 1;
  width: 100%; 
}

.navigation__icon {
  position: relative;
  margin-top: 3.5rem; 
}
  .navigation__icon, .navigation__icon::before, .navigation__icon::after {
    width: 3rem;
    height: 2px;
    background-color: #333;
    display: inline-block;
 }
  .navigation__icon::before, .navigation__icon::after {
    content: "";
    position: absolute;
    left: 0;
    transition: all .2s; 
}
  .navigation__icon::before {
    top: -.8rem;
 }
  .navigation__icon::after {
    top: .8rem; 
}

.navigation__button:hover .navigation__icon::before {
  top: -1rem; 
}

.navigation__button:hover .navigation__icon::after {
  top: 1rem; 
}

.navigation__checkbox:checked + .navigation__button .navigation__icon {
  background-color: transparent; 
}

.navigation__checkbox:checked + .navigation__button .navigation__icon::before {
  top: 0;
  transform: rotate(135deg);
 }

.navigation__checkbox:checked + .navigation__button .navigation__icon::after {
  top: 0;
  transform: rotate(-135deg); 
}


.footer {
  font-size: 62.5%;
  background-color: #333;
  padding: 10rem 0;
  font-size: 1.4rem;
  color: #f7f7f7;

  position: fixed;
  left: 0;
  bottom: 0;
  width: 100%;
text-align: center;

} 

  

 
footer {
  position: fixed;
   left: 0;
   bottom: 0;
   width: 100%;
  height: 25px;
  background-color: rgba(221, 204, 204, 0.774);
   color: black;
   text-align: center;
  font-size: 15px;
    margin: 0;
  padding: 0px;
  box-sizing: inherit; 

}